It is an extremely serious bug. In my view, it is not just critical. Itis nuclear. As the thread shows, many people have been affected. About amonth ago, "samsung-laptop" kernel module was found to be the likelycause of the bug. The proposed fix involved the removal of "samsung-laptop" kernel module if the UEFI mode was detected. A few days ago Iwas able to successfully install Ubuntu 12.10 64-bit on my Samsunglaptop using the proposed fix, and thereby confirm that the "samsung-laptop" kernel module was the likely cause of laptop bricking.

Could you please clarify the relationship between the "samsung-laptop"kernel module that is part of Ubuntu, and your ppa? I am tempted toinstall and use your ppa because I would like to have my keyboardbacklighting and wifi keys work properly. But after what we haveobserved with bug #1040557, I am afraid to try it -- bricking a laptopis no fun.

It was intended to replace the kernel module found in the official ubuntu 12.04 kernels which was badly broken at the time.Since then, the sources from this git repo have been merged into the vanilla kernel, and this is why the 'samsung-laptop' package is no more available on my PPA for ubuntu 12.10.

After reading the bug report you linked, I suspect the 'easy-slow-down-manager' and 'samsung-backlight' kernel modules from my PPA may be affected by the same problem.They are an alternative to 'samsung-laptop', but they work mostly as the latter (ACPI commands), so I'd suggest to avoid them as well.

The only other package available on my PPA is 'samsung-tools'. It's a set of commandline and graphical tools to handle devices through the control interfaces provided by samsung-laptop and easy-slow-down-manager.Without these control interfaces, it's pretty useless I'm afraid.

I agree with you when you say this bug is nuclear. It's ridiculous that a machine can be permanently bricked in such an easy way.These are the "beauties" of UEFI i guess.

So, if you own one of these machines and you are planning to install a GNU/Linux distro on it, be very careful and follow the discussion in the bug report #1040557 linked above.

If any news, I'll post in this thread.

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Please consider a little donation to keep the 'Linux On My Samsung' project up and running. Thank you!

I would stick to using good old mbr/bios/cmos/grub. I have not heard a particular yes or no as to whether the newer samsungs are still affected by this bug. Staying away from uefi (even though stub loading is quick and slick) seems to be the safer course of action.

this is my first post at this forum and I would like to thank all the people involved in the project, included the comunity.

I've recently bought a samsung NP 530U4C - S01 laptop, (july 2013) and just after buying it I've seen all the problems related to the installation of linux distros on UEFI

I just wanted to know if the problem still persist..I need ubuntu and scientific linux for my studies, and I need to run vmware workstation on top of ubuntu for my exercisses. Until now I haven't had any problem with UEFI disable, but I would like to enable it to install windows 8 (and reinstall ubuntu etc...) This laptop is meant to be used with linux, and if that is gonna get me into troubles, I still have a few days to return it to the shop where I bought it

About four months ago I bought an NP350V5C-A0EUK, it had Windows 8 pre-installed on it. It has the UEFI system installed and all the rest of the rubbish.

Yesterday I googled to find out whether anyone had got round this problem yet specifically for this model and one person had installed Ubuntu on their system that I could find, from what I can gather part of the problem was down to bios. My version of bios is three versions up from the version that had problems.

This morning I very warily installed Kubuntu 13.04 on this system, it has been rebooted and I am currently typing this post on the Laptop. I am a happy man.

A quick note to anyone that wants to do this, please do as much research as you possibly can before attempting this, If you don't feel happy about doing this, Do Not Do It

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